Most viewed questions in Big Data Hadoop

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pattern mapreduce

i need to write some mapreduce pattern ...READ MORE

Jul 23, 2019 in Big Data Hadoop by tiza
 • 373 views
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1 answer

How to specify Hue Server Http address?

Search for the Hue configuration file on ...READ MORE

May 24, 2019 in Big Data Hadoop by Rahul
 • 373 views
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Does Caching stand as the only advantage in Spark compared to Hadoop?

Spark has much lower per job and ...READ MORE

Jul 31, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 372 views
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1 answer

Oozie editor issue in CDH 5.4: Documents not available.

Hi. CDH 5.4 and later versions use ...READ MORE

May 27, 2019 in Big Data Hadoop by Nisha
 • 370 views
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What is Hadoop?

Hadoop is simply a free and open-source ...READ MORE

Nov 24, 2021 in Big Data Hadoop by Edureka
 • 12,690 points • 369 views
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Hadoop Small File

Hi@himanshu, To monitor your Namenode, you can create ...READ MORE

Aug 24, 2020 in Big Data Hadoop by MD
 • 95,440 points • 369 views
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How to execute job In Oozie?

Can anyone suggest which command to use ...READ MORE

Jun 17, 2019 in Big Data Hadoop by rena
 • 369 views
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Setting REST service in Hue

To be able to browse the znode, ...READ MORE

May 30, 2019 in Big Data Hadoop by Esha
 • 369 views
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Produce compressed data from map reduce

 It is straight forward and you can achieve ...READ MORE

Jul 24, 2019 in Big Data Hadoop by John
 • 368 views
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Explain to me to download a Hadoop documentation of a particular version.

I'll drop a link here which will ...READ MORE

May 7, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 368 views
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1 answer

Hadoop with Python: How to use python to stop Hadoop tasktracker?

Here you go os.system('sudo -u hadoop bin/hadoop-daemon.sh stop ...READ MORE

Nov 16, 2018 in Big Data Hadoop by Omkar
 • 69,230 points • 368 views
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How to start working with scala?

Scala can be installed on any UNIX ...READ MORE

Nov 16, 2020 in Big Data Hadoop by Gitika
 • 65,910 points • 367 views
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Docker: Access a service on host from a container

Mar 26, 2018 in Big Data Hadoop by shubham
 • 7,340 points • 366 views
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1 answer

Sqoop import mention accumulo instance to use

You have to mention the accumulo instance ...READ MORE

May 17, 2019 in Big Data Hadoop by Esha
 • 365 views
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1 answer

Running into an issue while running the mapred job on the server

Try this command hadoop dfs -put /var/tmp/students.txt / hadoop ...READ MORE

Dec 20, 2018 in Big Data Hadoop by Omkar
 • 69,230 points • 364 views
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What skills do I need to become Hadoop Admin?

You have heard it right. There is ...READ MORE

Nov 8, 2018 in Big Data Hadoop by anonymous
 • 364 views
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Not able to see racks in reports

Seems like rack awareness is not configure.  Try ...READ MORE

Feb 22, 2019 in Big Data Hadoop by Lucky
 • 363 views
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1 answer

What is Speculative Execution?

If a node is executing a task ...READ MORE

Jun 18, 2018 in Big Data Hadoop by shams
 • 3,670 points • 363 views
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1 answer

What configuration I need to make to run HBase client?

Hey, If you are configuring an IDE to ...READ MORE

May 31, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 362 views
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1 answer

Hue: Set NT domain

Hi.  How to set NT domain? You have to ...READ MORE

May 29, 2019 in Big Data Hadoop by Kiran
 • 362 views
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1 answer

Hive: Create Roles

The syntax to create roles is: CREATE ROLE ...READ MORE

May 31, 2019 in Big Data Hadoop by Olly
 • 357 views
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Namenode start error

Seems like the content in core-site.xml file is ...READ MORE

Dec 26, 2018 in Big Data Hadoop by Omkar
 • 69,230 points • 357 views
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What is Hadoop?

What is Hadoop? READ MORE

Dec 2, 2021 in Big Data Hadoop by Kavya
 • 700 points • 356 views
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1 answer

Hadoop: Reading and Writing Sequencefile using Apis?

public class SequenceFilesTest { @Test ...READ MORE

Nov 9, 2018 in Big Data Hadoop by Omkar
 • 69,230 points • 354 views
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Explain to me the HUE.

I am kind of new to Big-Data ...READ MORE

May 16, 2019 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 350 views
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1 answer

Determining number of reduces?

Number of reduces are set by the ...READ MORE

Aug 16, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 350 views
0 votes
1 answer

Delimiter on the data

You can use this: import org.apache.spark.sql.functions.struct val df = ...READ MORE

Jul 25, 2019 in Big Data Hadoop by Vinay
 • 348 views
–1 vote
1 answer

File is available at HDFS location. Still system throws en error.

This is happening because the file name ...READ MORE

Jan 2, 2019 in Big Data Hadoop by Omkar
 • 69,230 points • 348 views
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1 answer

Doubt regarding sqoop updated data

Incremental append or load in sqoop will ...READ MORE

Feb 15, 2019 in Big Data Hadoop by Omkar
 • 69,230 points • 347 views
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1 answer

Limit for Namenode Quantity

Each file Schema = 150bytes   Block schema ...READ MORE

Jul 25, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 346 views
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1 answer

Doubt in word count query

The COUNT function returns the number of ...READ MORE

Feb 19, 2019 in Big Data Hadoop by Omkar
 • 69,230 points • 345 views
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1 answer

how is apache sqoop different from flume? Can someone explain?

Apache Sqoop lets you import and export ...READ MORE

Nov 15, 2018 in Big Data Hadoop by brat_1
 • 7,200 points • 345 views
–1 vote
1 answer

How to Set cluster Rebalancer threshold

The command you are using is wrong. ...READ MORE

Jan 5, 2019 in Big Data Hadoop by Omkar
 • 69,230 points • 342 views
–1 vote
1 answer

Need help in Installation of Hadoop

To set up Hadoop VM in centOS ...READ MORE

Dec 19, 2018 in Big Data Hadoop by Omkar
 • 69,230 points • 342 views
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1 answer

Clarification of some Hadoop Concepts.

Please go through : http://bytepadding.com/big-data/map-reduce/understanding-map-reduce-the-missing-guide/ Lets try to understand ...READ MORE

Sep 5, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 342 views
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1 answer

Implementation in Hadoop

Hi@pinal, You have already installed hadoop. Now you ...READ MORE

Apr 3, 2020 in Big Data Hadoop by MD
 • 95,440 points • 339 views
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1 answer

Sqoop: Use accumulo with user credentials

Refer to the below syntax and use ...READ MORE

May 17, 2019 in Big Data Hadoop by Carly
 • 334 views
–1 vote
1 answer

Who will setup multimode and single node modes?

Cluster management is something that is generally ...READ MORE

Jan 21, 2019 in Big Data Hadoop by Omkar
 • 69,230 points • 334 views
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1 answer

Execute the Pig script in Local mode.

Hi@akhtar, You can write an entire Pig Latin ...READ MORE

Oct 14, 2020 in Big Data Hadoop by MD
 • 95,440 points • 332 views
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1 answer

Run Oozie against a federated Cluster

You can run Oozie against the federated ...READ MORE

Jun 6, 2019 in Big Data Hadoop by Nanda
 • 330 views
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1 answer

Mappers in Hadoop

The number of mappers is determined by ...READ MORE

Jul 31, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 330 views
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1 answer

Restrict number of workflows retrieved in an API call

Hey there! Because you are trying to ...READ MORE

May 27, 2019 in Big Data Hadoop by John
 • 329 views
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hey,can you help me

I am install hadoop and runing program ...READ MORE

Apr 11, 2019 in Big Data Hadoop by faris
 • 328 views
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What things to keep in mind before upgrading Hbase ?

Hey, Before beginning the upgrade process, you must ...READ MORE

May 31, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 327 views
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I was trying to imlement giraph code but difficult to implement I dont know which method I will follow for solution I have already jar files

May 2, 2019 in Big Data Hadoop by anonymous
recategorized May 2, 2019 by Omkar • 326 views
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1 answer

what is big data concept

Big data refers to extremely large, and ...READ MORE

Feb 1, 2022 in Big Data Hadoop by CoolCoder
 • 4,400 points • 325 views
0 votes
1 answer

Query regarding ArrayBuffer

It's because that is the syntax. This ...READ MORE

Jul 26, 2019 in Big Data Hadoop by Rishi
 • 325 views
0 votes
0 answers

what is big data technology?

Dec 17, 2021 in Big Data Hadoop by Edureka
 • 13,620 points • 317 views
0 votes
1 answer

Hue Health issue

The status of Hue is shown in ...READ MORE

Jan 31, 2019 in Big Data Hadoop by Omkar
 • 69,230 points • 309 views
0 votes
1 answer

what is big data technology

Big data refers to extremely large, and ...READ MORE

Feb 1, 2022 in Big Data Hadoop by CoolCoder
 • 4,400 points • 299 views
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